christianescamilla

Howdy, so I just replaced opti, and fuel pump and fuel filter. Used The treperformance fuel pump. I get everything back together check the fuel pressure. She's giving me 43 psi key forward car off. It slowly drops. I mean slowly like it should. I turn the car on. She runs smooth. No missfires or anything. I turn her off and call it a night. I come to start it this morning and it is running like crap. Stumbling, missing and stalling out. Put the f.p.g. on the schrader valve. She's putting out 10psi and dropping quickly? Please help fellas she's been sitting for 2 months.
Thanks

mab6680

iTrader: (1)

check that one hose on the fuel pump the clear plastic one that should of been replaced with a piece of black rubber fuel line. that's what caused it on mine

christianescamilla

I did replace it with the black one. Do you think it could be a bad fuel pump on trePerformances part?

mab6680

iTrader: (1)

i had the same problems when that hose popped off after the first start up. I used a walbro 255lph pump so I cant speak on your pump

christianescamilla

Thanks brother! I'll check it out tomorrow

BIGsmokey10

iTrader: (3)

Check from injectors all the way to tank for leaks, if nothing Pull the pump out and put a genuine Walbro in it... before you put it all back together verify pressure. Could be a bad check valve, crappie pump, leaking injectors, lline leaking. ..

moehorsepower

iTrader: (3)

Now you know you cannot use regular fuel injected fuel hose to submerge in the tank, it will eventually swell up. They do sell hose specifically to be submerged in fuel but its like $25 a foot.I bought mine at a NAPA auto parts.

mab6680

iTrader: (1)

yeah forgot to mention that whole submersable hose thing. my pump came with a piece of it.

Mystery Bird

iTrader: (7)

FYI, I tried a Treperformance pump years ago and it lasted a total of 20 minutes.